Calculating-machine.



V. J. DDHNER.

CALCULATING MACHINE.

APPLICATION FILED JUNEQ, 1910.

996,667. Patented July 4, 1911.

nNENToR. VALENTM JHCOBO 0mm WITNESSES:

-i-ngl v to the right.

UNITED sTA rn .I rENT OFFICE.

VALENTIN JACOB ODHNER, OF ST. rnmnasnoga, BUB HIA- CALCULATING-MACHINE.

T 0 all whom it may concern:

Be it known that I, VALENTIN JAixJn 0011mm, :1 subject of the King of Sweden, and residing at St. Petcrshurg, Russia, have invented certain new and useful Inqn'ovements in Calculatinglllachinch, of which the following is a. specification.

3* invention relates to mechanism in catculating machines for moving the carriage carrying the calculating disks.

In calculating nmchincss comprising a movable czirrisigr carrying lit'f milcnhitiin; disks, when multiplying with. units of 1) high order or dividing by the same the carriage must be moved each firm: Emu place to the right or left, according in cnrh instance If-1' the cipher in question. Belongs to the higher or lower order.

A primary ohjc-t't of my invention is; to provide simple nicche'mism for moving tho carriage. To this end, I provide two (tieplaccnient keys which iitCl engage iovnnrs of a pawl in one (If two notchcil 4hr iar ing oppositely (.llI't-lfi'ifitl. teeth. with '1. ch is connected at ninion meshing with a:

r21 ck.

Specification of Letters Patent. Application filed June 9, 1910.

pinion is rotated in the one or other rlir tion and the carriage moved corrcspc-mt or left. This armngmncnt has the advantage that to! moving the 7:11- riage in the one or other flit-Potion only mu: pressure in one direction, nzuncly only d ion-- wardly, is necessary, so that thc carriage can be moved very rapidly and without. npprc ciahlc exertion.

It might; happen that it a in); be depressed too rapidly the carriage is, accelerated and passes the next position before the key hae returned into its normal position and has released the bolt, in order to lock the carriage; I preferably avoid this by connect ing with each of the two keys used for movingthe carriage two pawls, of which the one retrlicts the bolt of the carriage, when the key is moved, and releases the Shillfi.

' in the accompanying draivings, whercin;-

F gure ,1 IS a. section on the line i? C-DE-F;inF ig. 2 as seen from right to left, Fig.2 is a vertical section. in the plane AB m Fig. 1, the pawls and levers Patented July 4, 1911.

Serial No. 586,078.

hart in been removed; Fig. 3 shows a rack need arrangement 0. the levers and pawls for moving the carria e to the right into the extreme positions; ig. 5 is a section in the plane g h in Fig. 2; Fig. 6 shows the ar- .l'nngmnentof levers on the ponds; Fig. 7 is a section in the plane a-d in Fig. 8, FiF. R a top plan view of the levers and aw s and Fig. 9 a section on the line C--D-- -F in Fi 2 seen from left to right.

lteihrring t0 the figures, the rack 2 is sccorccl to the casing 5 0f the carriage of the H'liWlllllU, sonic distance above the base 1. no pinion 3 is secured on an axle 4 jourmilorl in standards 4 and 4. On this axle are also secured twoliotchecl disks 7, 8 integral one with the other and having 0ppol v'-alir ;v.:ted teeth. In addition, this axle carries :1 loose bushing which, on the one howl, is tormccl a ratchet Wheel 49 having: tooth like those of the ratchet Wheel 7', and. on the other hand, :is it cannwheel 53. On the neclrof this bushing .50 is :1 loose similar mvnihepfil which, on the one hand, formed use notched disk 51 having teeth eiinihir to those of the notched disk 8' and, OlllliO()ll1G1l1iI1(l,lS a cam vhecl 52. the two cznn-wlgecls 5'2 and 53 is a roller rm'ohihleon :i-jonrnal 56 of a bolt 19*. In the nm'mal position of the carriage the top end of thin holt snaps'into one of the lower 'iqvities 90' in thc rnck 2.

Cavities 20" Eire cut between the cavities 20 in order to form a rack :2 in mesh with the pinion 3. Two teeth of this pinion correspond to a displacement of the carriage 5 one place.

The bolt. 19 is constantly pressed upward by it spring ,22'; consctpicntly the roller. isnlways pressed against the the cam-Wheels .52, 53. In the position shown in Fig. the roller 55 ispressed downwurdby the cam-wheel .33.

Iiurls 59, 59 located at the two sides of the plane A.tl coiict with the teeth of the .notchetl (links 7, S and pawls 69, 69 with the teeth of the ratchet wheels 49, 51. The pawl 5-), 69 and 59, 69' are mounted on axles-6Q, 60, respectively. These axles are secured on slides, 74' carrying keys 73, Each of the pawls 59, 59 has a knee: shaped extension 61,61. tocac-h of which the one end-of a spring 62', 62 is attzu hcd; the other end of 'SprmgfiZ is secured to :1V pin 67 provided-oha projection on an anlnder peripheries of i fle level 63, 64. This angle lever is rigidly onnected with the axle 60 and is held in its .normalposition (Figs. 1, 4 and 6) by a spring 65 on a fixed rod 66.

' pawls at a definite distance from one another a sleeve 68 is provided on the axle 60.

The pawls 59', 69 are arranged in an exactly similar manner, like parts having the same reference characters and indices.

This form of my a paratus operates as follows :As soon as t he key 73 1s ressed by a finger, the slide 74 descends *igs. 7 and 9) and with it the axle 60 and pin 71 which, on their part, drive the pawls 59, 69, downward. During the first phase of the movement of the key the pawls 59, 69 do not yet coact with then notched disks 7, 49,

which consequently remain stationary. The

top end of the bolt 19 has snapped into the rack 2 and consequently locked the carriage. Only the spring 65, which serves for return ing the key into its initial position, is sub- 1 ment t e extension snap intojected to strain during this phase of the motion. .During the second phase of the movement the pawl 69 presses on a tooth of the notched disk 49 and rotates it one tooth.

The cam-wheel 53 is thereby rotated the same angle, as it is integral with the disk 49, and moves out of the position 53 showmin dotted lines in Fig, 5 into the position 53 shown in full lines, the roller 55 being pressed downward and the bolt 19" withdrawn from the ga 20. When the key is depressed stilliart er, the notched disk 59 abuts against the tooth of the notched 'disk 7',and rotates, it one tooth, the pinion 3, which is securedon the same axled as that on which the notched disk- 7 is secured, being rotatedtwo teetlr'and in this manner moving the carriage 5 pneplace. 'At the beginnin ,,of the t against the fixed pin 72 and. thereby causes the fawl can) rock so that it releases the note ed disk-49. The notched disks 7', i9 rotate .a small, distance together,'-na'mel until the cam of the cam-wheel 53 has 10 t the roller 55. Owing to the spring 22' the latter tends 'to rise at once an not do because at this moment the end of the bolt is notopposite a gap '20" in the rack, so that the carriage, is moyed during. this phase ofthe movement. Only 'quiteat the end of this third phase, does the end of the bolt t is" corresponding gap m-the rack bination, with ird phase of the move-- 70 of the pawl 69 lies thereby to allow" the bolt to snap in, which, however, it can carriage in a calculatin the carriage,

and lock the carriage. Owing to the action of the spring the slide 74 is lifted with the two pawls 59, 69 when the key is released. Then, owing to theaction of the spring 62, the pawl 59 jumps over one tooth of the notched disk 49 into its initial position and, owing to the action of the spring 76, the pawl 69 jumps over one tooth of the notched disk 7 into its initial position. When the key 78' is depressed the pawls 59', 69' coact with the notched disks 8', 51 in like manner and cause the carriage to move one lace in the opposite direction.

T 1e apparatus can also be made: so that the rack 2 remains immovable while the entire device comprising the pinion 3 is displaceable.

I claim 1. In apparatus for laterally moving the carriage in a calculating machine, the combination, with a toothed rack, of a shaft, a pinion secured on the shaft in mesh'with said rack, a pair of notched disks havin o positely-directed teeth secured on the shalt, two pawls adapted to coact with the notched disks and rotate the same in oppositedirections, and two movable keys each coacting with one of said pawls.

2. In apparatus for laterally moving the carriage in a calculating machine, the combination, with a toothed rack, of a shaft,

a pinion secured on the shaft in mesh with said rack, a pai of notched disks having 0 positely-directed teeth secured on the sha' t, two pawls adapted to coact with the notched disks and rotate the same in opposite directions, a bolt normally entering Into said rack and reventing said pinion rotating, two mova le keys each coactin with one of said pawls, and means operated by said keys for rerhoving "said bolt from the rack when one key is depressed.

3. In apparatus for laterally moving the carriage ina calculating machine, the ooma toothed rack, of a shaft,

a inion secured on the shaft inmesh with sald'rack, a pair of notched disks havin o positely-directed t'eeth secured on the s a t two pawls adapted to coact with the notched disks androtate the same in op tions, a bolt normally entermg-into sai rack and eventing said pinign rotating two 'movablie' said pawls, and means o crate by, said keys for removing said bolt tom the rack v when one key is de ressed said bolt being re;v moved from c rack before one of said notched disks is rotated when one of said keys is depressed 4. In Japparat s for laterally moving the machine, the combination, with a toothe" rack integral with of a shaft mounted on the base plate of the machine, spin ion secured on the shaft in mesh, with "saidlrackfa pair .of

keys each coactin with one'o notched disks having oppositely directed teeth secured on the shaft, two pawls adapted to coact with the notched disks and rotate the same in opposite directions. and two lnovahle keys each vomiting with one of said pawls mounted on the base plate.

5. in :qqparatue for laterally moving the carriage in a calculating machine the coinhination, with a toothed rack, of a shaft, a pinion secured on the shaft in mesh with said rack, a pair of notched disks having 0 positcly-direrted teeth secured on the sha t, a pair of pawls adapted to coact with and rotate the notched disks in opposite directions, a spring-pressed bolt. normally entering into said rack and preventing said inion rotating, a second pair of notched disks having o )positely-directed teeth mounted free to rotate on said shaft, means operated by the latter notched disks for removing the bolt from the rack, a pair of pawls adapted to enact with and rotate the latter pair of notched disks in opposite directions, and two movable keys each operatively connected with one of said pairs of pawls.

6. In apparatus for laterally moving the carriage in a calculating machine, the com bination, with a toothed rack, of a shaft, a pinion secured on the shaft in mesh with said rack, a pair of notched disks having oppositely-directed teeth secured on the shaft. a pair of pawls adapted to ('Uflfi't with and rotate the notched disks in opposite directions, a spring-pressed bolt normally entering into said rack and preventing said pin.- ion rotating, a second pair of notched disks having oppositely-directed teeth mounted free to rotate on said shaft, each of the latter notched disks having a cam-wheel integral therewith adapted to coact with and remove the bolt from the rack, a pair of pawls adapted to enact with and rotate the latter f pair of notched disks in opposite directions, and two movable keys each operatively con-- neeted with one of pairs of pawls.

7. In apparatus for laterally moving the carriage in a calculating machine the combination, with a toothed rack, of a shaft, a pinion secured on the shaft in mesh with said rack, a pair of notched disks having oppositely-directed teeth ecured on the shaft, a pair of pawls adapted to coact with and rotate the notched disks in opposite directions, a Spring-pressed bolt normally entering into said rack and preventing said inion rotating, a second pair of notched. CllSkS having oppositely directed teeth mounted free to rotate on said shaft, each of the lat-' ter notched disks having a camwvheel in tegral therewith adapted 'to coact with and remove the bolt from the rack, a pair of pawls adapted to coact with and rotate the latter pair of notched disks in opposite directions, and two movable keys each opera tively connected with one of said pairs of pawls, each of the pawls of the second pair having an arm, and a stop pin adapted to enact. with the arms of the latter pawls and hold the same out of engagement with the appertaining notched disks in the lowestposition of the pawls.

ti. In apparatus for laterally moving the carriage in a calculating machine, the conihination, with a rack, and a spring-pressed bolt normally entering into the same, of a cam-member coacting with the bolt for removing the same out: of and allowing the same to return into, the rack.

In testimony whereof, I allix my signature in the resence of-two witnesses.

VAIv NTIN JACOB ODHNER. Witnesses: i M. Banrrross,

KLEINMAN. 

